Title:
POLYCHLOROPRENE LATEX, RUBBER COMPOSITION AND DIP-MOLDED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2012/137663
Kind Code:
A1
Abstract:
Provided are: a polychloroprene latex which is capable of providing stability at low temperatures without lowering rubber aggregability during when a dip-molded article is molded; a rubber composition; and a dip-molded article which is obtained using the polychloroprene latex or the rubber composition.
A polychloroprene latex wherein a chloroprene copolymer, which is obtained by polymerizing starting material monomers that include at least chloroprene and 2,3-dichloro-1,3-butadiene, is dispersed in water. The amount of 2,3-dichloro-1,3-butadiene contained in the starting material monomers is set to 1-30% by mass, and 0.7-1.5 parts by mass of potassium ions are contained therein per 100 parts by mass of the solid content, while controlling sodium ions to 0.2 parts by mass or less. A rubber composition is obtained by blending 1-10 parts by mass of a metal oxide, 0.1-3 parts by mass of sulfur, 0.1-5 parts by mass of an anti-aging agent and 0.1-10 parts by mass of a surfactant into the polychloroprene latex per 100 parts by mass of the solid content.
Inventors:
HASHIMOTO IKUKA (JP)
YASHIMA HIROYUKI (JP)
MORI TAKEO (JP)
YASHIMA HIROYUKI (JP)
MORI TAKEO (JP)
Application Number:
PCT/JP2012/058391
Publication Date:
October 11, 2012
Filing Date:
March 29, 2012
Export Citation:
Assignee:
DENKI KAGAKU KOGYO KK (JP)
HASHIMOTO IKUKA (JP)
YASHIMA HIROYUKI (JP)
MORI TAKEO (JP)
HASHIMOTO IKUKA (JP)
YASHIMA HIROYUKI (JP)
MORI TAKEO (JP)
International Classes:
C08F236/18; C08F2/00; C08F6/14; C08L11/02
Foreign References:
| JP2007106994A | 2007-04-26 | |||
| JP2011122141A | 2011-06-23 | |||
| JP2010126586A | 2010-06-10 | |||
| JPS5674108A | 1981-06-19 | |||
| JPS5971319A | 1984-04-23 | |||
| JPS6065011A | 1985-04-13 | |||
| JP2006307156A | 2006-11-09 |
Attorney, Agent or Firm:
WATANABE Kaoru et al. (JP)
Kaoru Watanabe (JP)
Kaoru Watanabe (JP)
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Claims: